1. University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin;
2. Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio;
3. University of Washington School of Medicine, Seattle, Washington;
4. University of Rochester and Rochester General Hospital, Rochester, New York;
5. Center for Health Equity and Quality Research, University of Florida Jacksonville, Jacksonville, Florida;
6. University of Vermont College of Medicine, Burlington, Vermont;
7. Department of Pediatrics, University of California Los Angeles, Los Angeles, California;
8. University of Arizona College of Medicine, Tucson, Arizona;
9. University of Louisville School of Medicine, Louisville, Kentucky;
10. Baylor College of Medicine, Houston, Texas;
11. University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; and
12. Department of Pediatrics, Emory University, Atlanta, Georgia